<!DOCTYPE html>
<html>
<head>
    <!-- from: https://phaser.io/sandbox/frame -->
    <meta charset="utf-8" />
    <meta name="renderer" content="webkit" />
    <meta http-equiv="X-UA-Compatible" content="IE=edge,chrome=1" />
    <meta name="viewport" content="width=device-width, initial-scale=1, maximum-scale=1" />
    <meta name="keywords" content="" />
    <meta name="description" content="" />
    <meta name="author" content="gsw945" />
    <link rel="shortcut icon" type="image/x-icon" href="./favicon.ico" />
    <title>Phaser Demo With Parcel</title>
    <link rel="stylesheet" href="styles.css" />
    <style type="text/css">
        body,
        html {
            margin: 0;
            padding: 0;
            border: 0;
        }
        #game {
            border: 1px solid #fa1;
        }
    </style>
</head>
<body>
    <!-- <h1>Hello, World!</h1> -->
    <div class="page-body">
        <div id="game"></div>
    </div>
    <script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/jquery/3.5.1/jquery.min.js" type="text/javascript"></script>
    <script src="https://lf3-cdn-tos.bytecdntp.com/cdn/expire-1-M/phaser/3.52.0/phaser.min.js" type="text/javascript"></script>
    <script type="text/javascript">
        var config = {
            type: Phaser.AUTO,
            parent: 'game',
            width: 800,
            height: 600,
            backgroundColor: 0x2d2d2d,
            physics: {
                default: 'arcade',
                arcade: {
                    gravity: { y: 200 }
                }
            },
            scene: {
                preload: preload,
                create: create,
                update: update,
                render: render
            }
        };

        var rt;
        var graphics;
        var offset;

        var game = new Phaser.Game(config);

        function preload ()
        {
            // this.load.setBaseURL('http://labs.phaser.io');
            // this.load.atlas('megaset', 'assets/atlas/megaset-0.png', 'assets/atlas/megaset-0.json');
            this.load.atlas('megaset', '/assets/atlas/megaset-0.png', '/assets/atlas/megaset-0.json');
        }

        function create ()
        {
            rt = this.add.renderTexture(0, 0, 800, 800);

            var atlasTexture = this.textures.get('megaset');

            var frames = atlasTexture.getFrameNames();

            for (var i = 0; i < frames.length; i++)
            {
                var x = Phaser.Math.Between(0, 800);
                var y = Phaser.Math.Between(0, 600);

                rt.drawFrame('megaset', frames[i], x, y);
            }

            graphics = this.add.graphics();

            var cropWidth = 290;
            var cropHeight = 120;

            rt.setCrop(200, 200, cropWidth, cropHeight);

            offset = rt.getTopLeft();

            this.input.on('pointermove', function (pointer) {

                rt.setCrop(
                    (pointer.x - offset.x) - cropWidth / 2,
                    (pointer.y - offset.y) - cropHeight / 2,
                    cropWidth,
                    cropHeight
                );
            });
        }

        function update ()
        {
            graphics.clear();
            graphics.lineStyle(1, 0x00ff00);
            graphics.strokeRect(offset.x + rt._crop.x, offset.y + rt._crop.y, rt._crop.width, rt._crop.height);
        }

        function render () {
            //
        }
    </script>
</body>
</html>